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[Microalbuminuria--a new cardiovascular risk factor?].
1Klinik und Poliklinik für Nephrologie und Hypertonie, Universitätsspital, Bern. ute.eisenberger@insel.ch
Therapeutische Umschau. Revue Therapeutique
|October 19, 2006
Summary
Microalbuminuria, a marker of kidney damage, significantly predicts cardiovascular risk in diverse populations, independent of traditional factors. Lowering microalbuminuria with ACE inhibitors or ARBs reduces cardiovascular mortality.
Area of Science:
- Nephrology and Cardiology
- Urine albumin excretion analysis
- Cardiovascular risk stratification
Context:
- Microalbuminuria is a known risk factor for kidney disease, particularly in diabetics.
- Emerging evidence highlights its predictive role in cardiovascular morbidity and mortality.
- Albuminuria levels correlate continuously with increased cardiovascular risk across a spectrum from normal to overt proteinuria.
Purpose:
- To assess the predictive value of microalbuminuria for cardiovascular outcomes.
- To investigate the association between albuminuria and cardiovascular risk, independent of traditional risk factors.
- To evaluate the cardioprotective and reno-protective effects of ACE inhibitors and ARBs in relation to albuminuria reduction.
Summary:
- Albuminuria, irrespective of traditional cardiovascular risk factors like hypertension, hyperlipidemia, and smoking, demonstrates a strong association with cardiovascular morbidity and mortality.
- This predictive value extends beyond diabetic and renal disease patients to include hypertensive individuals and the general population.
- Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers significantly reduce cardiovascular mortality, linked to their ability to lower albuminuria by approximately 40%.
Impact:
- Establishes albuminuria as a critical, independent biomarker for cardiovascular risk assessment.
- Highlights the cardioprotective potential of ACE inhibitors and ARBs, emphasizing their role in managing cardiovascular health.
- Underscores the need for further clinical trials to define optimal "normal" albuminuria levels and therapeutic targets.
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